Colloquium Schedule

Colloquium: Thursday, May 5, 4:25 PM via ZOOM

“Transport Dynamics in Ultracold Atoms”, by Prof. Joseph Thywissen, from the Department of Physics, University of Toronto

The world around us is not in equilibrium, but slowly (or quickly) relaxing through transport of conserved quantities such as energy, charge, and momentum. However, transport is challenging to calculate ab initio, leaving many open questions (such as high-temperature superconductivity) and room for new theoretical paradigms (such as holographic duality). Ultracold atoms provide an ideal platform for the study of non-equilibrium quantum physics, since samples are isolated from the environment, and the strength of interactions can be tuned.

In this talk, I will discuss two experiments that use cold atoms to explore transport dynamics. In the first experiment, we explore how particle-current is dissipated in a perfect and rigid crystal, due to interactions in a system with broken Galilean invariance. In the second experiment, we measure spin diffusion in a strongly interacting Fermi gas. We observe a kind of quantum "speed limit" on the transport rate.

Seen from another perspective, these experiments implement quantum simulations, which are very specialized quantum computations. Although neither error-corrected nor universal, quantum simulators can be built now, can exceed the computational capability of a numerical simulation, and are ready to be applied to important open questions and challenges.

Click Here for full announcement

Physics and Astronomy Colloquia are usually scheduled for Thursdays at 4:25 PM in Room 316 Lewis Lab.  For Zoom participation, please see below:

Meeting ID: 972 1274 7894
Passcode: 631869

Physics Colloquium Schedule for Spring 2022

Click on Title below for past or upcoming Announcements (where available), and Speaker name for website.        

Date Speaker Affiliation Title
January 27 Postponed to March 10 -
February 3 Srinivas Rangarajan Lehigh University

Elucidating active sites and reaction mechanisms in heterogeneous catalytic conversion

February 10 Matthew Foster Rice University Topological superconductors:  Boundary fluids, electromagnetic fingerprints, and spectrum-wide fractality
February 17 Seth Aubin College of William and Mary Ultracold Atom Technology for Fundamental Physics
February 24 Aurelia Honerkamp-Smith Lehigh University Sliding, expanding, and compressing: how membranes respond to fluid flow
March 3 Subir Sachdev Harvard University Statistical mechanics of metals without quasiparticles, and of charged black holes
March 10 Velia Fowler University of Delaware Red Blood Cell Membrane Architecture, Shape and Biomechanics: From the Micro- to Nanoscale
March 17 Spring Break - -
March 24 Shailesh Chandrashekharan Duke University Building our Universe with Qubits
March 31 Jay Deep Sau University of Maryland

Search for Non-Abelian Majorana particles as a route to topological quantum computation

April 7 Anders Knospe Lehigh University  The Little Bang: the Physics of Strongly Interacting Matter at Extreme Temperatures (CANCELED)
April 14 Megan Valentine UC Santa Barbara New frontiers in the development of soft micro-structured materials
April 21 Antal Jevicki Brown University   From Solitons to Black Holes : Emergent Phenomena in QFT
April 28 Gunther Roland MIT Hot QCD with sPHENIX at RHIC
May 5 Joseph Thywissen University of Toronto Transport Dynamics in Ultracold Atoms